Failure analysis of four-point-supported glass panels subjected to blast loading

Failure analysis of four-point-supported glass panels subjected to blast loading
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四点支撑玻璃板爆炸荷载失效分析

DOI:
10.1080/1023697x.2013.785089
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发表时间:
2013-03
影响因子:
--
通讯作者:
FrancisT.K.Au
FrancisT.K.Au
中科院分区:
--
文献类型:
--
作者:
魏亚;陈素文;FrancisT.K.Au

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玻璃板在承受爆炸载荷时,飞溅的碎片会造成大量人员伤亡和财产损失。因此,深入了解常见玻璃幕墙体系在爆炸荷载作用下的破坏模式是十分必要的。本文对四点支承整体和夹层玻璃板在爆炸荷载作用下的破坏模式进行了有限元分析。对两种墙板的抗爆性能进行了评价。然后利用压力-冲量理论,给出了超压-冲量方程和冲量图,为四点支承整体玻璃板的抗爆评估提供了实用的工具。
When glass panels are subjected to blast loading, the flying shards may cause large amount of casualties and loss of properties. It is, therefore, essential to understand thoroughly the failure modes of common glass curtain wall systems subjected to blast loading. This paper describes the finite element analyses of failure modes of four-point-supported monolithic and laminated glass panels subjected to blast loading. The blast resistance performance of the two kinds of panels is evaluated. Then using the theory of pressure-impulse, the overpressure-impulse equation and diagram are presented, which provide practical blast-resistance assessment tools for four-point-supported monolithic glass panels.
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